1 BYTE A2 M AS 12 OS 12 30 86887888 100 A13 A14 AIS A16 0011 0012 0913 DO15 AIT AIB A19 RD WA 100- 16 7130 VPP 28400 Voc PWRON VPP What purpose does DQ15 serve in 28F400 chip according to the circuitry in the diagram? Note that Ao is not always to be connected to that pin Select one: Oo. Depending on the value of PWRDN O d. It serves as a control bit O c. it serves as a data bit d. It serves as an extra address bit Clear my choice